PTFE (Polytetrafluoroethylene)
PTFE (Polytetrafluoroethylene) – Material Details
PTFE is a high-performance fluoropolymer known for its exceptional chemical resistance, non-stick surface, and wide temperature stability. It’s often chosen where rubber or standard plastics can’t survive – especially in harsh chemical, high-temperature, or low-friction environments
Key Properties
|
Property
|
Typical Value
|
|---|---|
|
Operating Temperature
|
-200°C to +260°C
|
|
Chemical Resistance
|
Excellent – inert to most acids, bases, solvents
|
|
Coefficient of Friction
|
Very low – among the lowest of any solid
|
|
Water Absorption
|
Nearly zero
|
|
Dielectric Strength
|
Very high – ideal for insulators
|
|
FDA Compliance
|
Yes (Virgin PTFE, on request)
|
|
Hardness (Shore D) ~50–65
|
~50–65
|
|
Specific Gravity
|
~2.15–2.20 (varies with filler)
|
Grades We Offer
|
Grade
|
Grade Features & Applications
|
|---|---|
|
Virgin PTFE
|
Pure PTFE. High purity, FDA compliant. Used in food, pharma, and RO systems
|
|
Carbon-Filled PTFE
|
Better conductivity and compression resistance
|
|
Bronze-Filled PTFE
|
Higher wear resistance and thermal conductivity – often in mechanical seals
|
|
Pigmented PTFE (optional)
|
Colored grades for visual differentiation
|
🏭 Typical Applications
• Sealing: Washers, gaskets, valve seats, and pump components
• Insulation: High-voltage or high-frequency electrical parts
• Food & Water Systems: RO filter washers, connectors (FDA grade)
• Chemical Equipment: Non-reactive seals in contact with acids or solvents
• Insulation: High-voltage or high-frequency electrical parts
• Food & Water Systems: RO filter washers, connectors (FDA grade)
• Chemical Equipment: Non-reactive seals in contact with acids or solvents
Why PTFE?
- Does not age or degrade easily
- Non-stick, anti-friction, and non-wettable surface
- Performs reliably in extreme conditions
- Available as molded or CNC-machined parts